Carbureter.



L.y COBB.

GARBURETER.

APPLICATION FILED 00T. 13, 191e.

Patented July 7, 1914.-

Witnesses Inventor l Attorneys UNiTED sTATEs PATENT oEEioE.

INDIANA.

LUTHER COBB, 0F BEDFORD, INDIANA, ASSIGNR T0 JAMESD. MARTIN, OF B-EDIEORID,v

. CAEBUEETER.

Specification of Letters Patent.

Application filed October 13, 1918; Serial No. 794,9"73`.

Toall w71 om it may concern Be it know-n that l, LUTHER-COBB, a citizen' of the United States, residing at Bedford, in the county of Lawrence and State of Indiana, have invented a new and useful Carbureter, of which the following is a.

' fuelldelivery pipel() having the inlet 10 vand with' the air inlet pipev 11, a valve 12 Abeing disposed intermediate of the carbuspecification. t

The present invention relates to improvements in canbureters, one obJect of the present invention being the provision of means.,

whereby the liquid fuel within the float chamber will be heated from the exhaust gases led from the exhaust manifold 'of the explosion engine, and by means of which the air entering the intake port ofthe carbureter will also be heated, thus insuring the proper volatilization and intermixing of the fuel with the air to produce a better mixed car- `bureted air for delivery to the explosion en ine.

. With the foregoing and other ob]ects in` view which will 'appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter de-` scribed and claimed, it being understood that changes in the precise embodiment of the invention herein disclosed can be made within the scope of what is claimed without departing from the spirit of the invention.

In the drawings- Figure 1 is a side elevation ofthe present attachment, the exhaust manifold being broken away and shown in section .to show ithe intake manifold of the explosion engine. Fig. 2 is a longitudinal sectional view through the complete carbureter attachment showing a portion of the exhaust andintake manifold.

Referring to the drawings, the numeral 1 designates the horizontal portion of the intake manifold which is incased within the horizontal portion of the exhaust manifold 2, the tapered casing 3 of the manifold 2 being extended downwardly and surrounding the vertical portion 4 of the intake manifold. By this means, the upper end of the intake manifold and its member 1 are properly surrounded and incased so as to receive the maximum heat from the exhaust gases delivered through and out of the exhaust manifold 2. i y

The priming or more volatile fuel mixture delivering member or casing 5 is interposed between the lower inlet end 6 of the intake manifold 4 and the carbureted air outlet through inlet and downwardlyand over the fuel nozzle N,`,c`ontrolled by reted air outlet 7 and the casing `5, and disl 7 of the 4carbureter 9. Air is drawn .in

the valve V, f the airbeing mixedL with the fuel to form y posed to be moved from the full tothe dotted line position, the same when in the full line... positionr cutting, olf the air supply' from fthe carbureted lair .outlet 7 and permitting air tol b e deliveredthrough the pipe or conduit 11, while` the same when positionedin thev dotted line position ,closes the air inlet V11;'. and opens the outlet end, of the carbureted'.

air outlet 7 of the carbureter.`

A baffle plate 10a isdisposed in the casing y5 and inclines' lt"di'reet lthe fuel from the 'outlet 10 into the air current led in from the pipe 11, thus insuring a priming mixture. f

rI he float chamber 13 of the carburetor, which may be taken indicative of any structure of float chamber, is disposed to be in cased and surrounded by the heating chamber 14, said chamber being provided with the inlet nipple 15 for the reception of the exhaust gas delivering and heating pipe 16,

the upper end of which is connected to the tapered portion 3 of theexhaust manifold to thus receive the exhaust gases from the manifold and deliver it into thel chamber 14. The outlet nipple 17 of. the chamber or casing 14, has connected, therein, the upstanding conduit 18, which is sealed 'at its upper end 19, the upper end 19 being projected into the inlet end of the air directing conduit 8 of the carbureter, so that the in-` rushing air will be heated thereby. 4 A vent 20 may or may not be provided in the pipe 18, or the same may be provided with al 'A valve to permit of the slight bleeding to permit of the introduction therein of the burnt gases to keep the tube or pipe 18 properly heated. It will thus be seen that the exhaust gases within the chamber 14 and pipe 18'` ioo The stem 12 of thevalve 12 is connected.

which relates more particularly to the exhaust manifold surrounding the intake manifold'and that structure' contiguous or next to the engine, is clearly shown, in the application led June 23, 1913, Serial No. 775,342, and no claim upon this detailed structure is herein made.

What is claimedl is:

1.' A carbureter, including a mixing chamber for a volatile priming fuel, said cham- -ber being provided With an air inlet and a carbureted air outlet, a ioat chamber for the less volatile fuel, a valve controlled nozzle leading therefrom, an air directing tube into which said nozzle projects, said tube having its outlet in communication with the volatile fuel mixing chamber, and a valve for y for the latter chamber,

A the fuel and directing the lclosing the carbureted air outlet'of the tube and for opening the air inlet of the less volatile fuel mixing chamber, or vice versa.

2. A carbureter, including a less volatile fuel containing float chamber, an air admitting tube carried thereby, a fuel nozzle leadin from the float chamber into the tube, a vo atile fuel mixing chamber in communication with the outlet of the tube, a fuel inlet an air dlrecting pi e also for the latter chamber a baille plate disposed inthe latter Chamb same into the aircurrent led from the air directing pipe thereof, and a valve mounted at the intersection of the volatile fuel mixing chamber and the outlet ofthe tube forclosing the outlet of the, tube or the air directing pipe of the volatile fuel mixing chamber.

In testimony that I vclaim the foregoing as my own, I have hereto aiixed my signature in the presence of two Witnesses.

LUTHER COBB.

t Copies of this patent may be obtained for ve cents each, by addressing the ommissioner of Iatents,

Wuhinzton, D. (2.

erv for receiving 

